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In reptiles, birds, mammals, gymnosperms...

In reptiles, birds, mammals, gymnosperms and angiosperms the fertilisation is

A

External

B

Internal

C

Both A and B

D

Can't say

Text Solution

Verified by Experts

The correct Answer is:
B

In many terrestrial organisms, belonging to fungi, higher animals such as reptiles, birds, mammals and in a majority of plants (bryophytes,pteridophytes,gymnosperms and angiospers) , and syngamy occurs inside the body of the organis, hence the process is called internal fertilisation.
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A2Z-REPRODUCTIVE IN ORGANISMS-Section A: Topicwise Questions (topic 3: Fertilisation And Post-fertilisation Events) The Zygote And
  1. Read the following statements and find out the incorrect statements. ...

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  2. The most vital and critical event of the sexual reproduction is

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  3. Parthenogenesis is found in a. Platyhelminthes b. Rotifers c. some ...

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  4. In fungi , bryophytes and pteridophytes, the fertilisation is

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  5. The following figure shows

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  6. In reptiles, birds, mammals, gymnosperms and angiosperms the fertilisa...

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  7. Read the following statements and find out the incorrect statement.

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  8. Which is the vital link that ensures continuity of species between org...

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  9. In organism with haplontic life cycle, zygote divides by

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  10. Every sexually reproducing organism, including human beings, begin lif...

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  11. The process of the development of embryo from the zygote is called

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  12. During embryogenesis zygote undergoes

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  13. Recognise the figure and find out the correct matching.

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  14. Animals in which development of zygote takes place outside the body of...

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  15. Animals in which development of zygote takes place inside the body of ...

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  16. Fertilised eggs covered by calcareous shell are found in

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  17. Asexual reproduction does not involve the

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  18. Which is incorrect about flowering plant?

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  19. External water is not required for fertilization of

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